Can't Deselect Mystery Object on Illustrator

This happens to me every single day. Illustrator randomly adds a "mystery object" which looks like an empty bounding box to my selection. I can't deselect it. In my layers panel it shows nothing as being selected. Normally I just select all, then deselect to make it go away, but this time it's not working. This makes accurate scaling of my real objects impossible because the selection will include this mystery object. I've combed the forums and found dozens of people with this exact problem, but none of the suggestions on those threads are working. I've read things about it being related to clipping masks or artboards, but this happens to me even when I'm only using one artboard and no clipping masks. Does adobe have any sort of explanation as to why this is happening? 

{Renamed by MOD}